Narco Avionics HT870 Скачать руководство пользователя страница 1 | Manualshive

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NARCO HT870

HANDHELD NAV/COM

960 CHANNELS

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Содержание HT870

Страница 1: ...NARCO HT870 HANDHELD NAV COM 960 CHANNELS...

Страница 2: ...PANEL DESCRIPTION 10 13 2 16 KEY KEYBOARD DESCRIPTION 10 13 3 PRODUCT DESCRIPTION HT870 11 14 1 INTRODUCTION TO OPERATING PROCEDURES 14 14 2 POWER TURN ON AND VOLUME CONTROL 15 14 3 SQUELCH CONTROL OP...

Страница 3: ...ii LIST OF ILLUSTRATIONS 13 1 HT870 CONTROL FUNCTIONS 9 13 2 MIC CONNECTOR PIN ASSIGNMENT 10 13 3 16 KEY KEYBOARD 10...

Страница 4: ...ed in which programmable frequencies can be locked out of the automatic or manual scan The HT870 is powered by a rechargeable quickly changed NiCad battery pack An optional nonrechargeable alkaline ba...

Страница 5: ...cy range NAV 108 00 to 117 95 MHz COM 118 00 to 136 975 MHz Audio output 0 5 watts into 8 ohms speaker 30 milliwatts into 600 ohms headphones Receiver sensitivity 1 5 microvolts max for 6 dB S N N Ima...

Страница 6: ...Part No 03125 0621 5 3 HT870 OPTIONAL ACCESSORIES The following list comprises the available accessories for the HT870 ITEM ORDER NUMBER DESCRIPTION 1 50900 0002 Nonrechargeable alkaline battery pack...

Страница 7: ...connector This connector is used when the owner wishes to design and fabricate his own interface adapter cable see item 8 6 1 HT870 MAINTENANCE INFORMATION The HT870 is not field repairable Should a...

Страница 8: ...used as an aircraft transceiver the Federal Communications Commission requires that FCC Form 404 titled Application for Aircraft Radio Station License be submitted prior to operation If the HT870 is t...

Страница 9: ...by a sharp 60 drop in capacity during the next 10 15 minutes of operation This memory effect is caused by repeatedly charging the batteries when they have been only slightly discharged This is a temp...

Страница 10: ...RY PACK TO PRESERVE MEMORY If a battery pack that needs recharging is being replaced by a second fully charged pack the exchange must be completed within 30 seconds Failure to do so will result in the...

Страница 11: ...n aircraft VOR antenna may be used however it is not recommended that HT870 COM transmissions be made while using a VOR antenna 12 1 CAUTIONS TO OPERATORS Ensure that the battery pack is properly char...

Страница 12: ...9 13 1 DESCRIPTION AND LOCATION OF CONTROLS Figure 13 1 HT870 CONTROL FUNCTIONS...

Страница 13: ...No Connection FIGURE 13 2 MIC CONNECTOR PIN ASSIGNMENT 13 2 16 KEY KEYBOARD DESCRIPTION FIGURE 13 3 16 KEY KEYBOARD The numbered keys are used to assign a frequency The letters M0 M9 define 10 memory...

Страница 14: ...e as follows 1 Antenna Connector This is a standard BNC connector which connects to the flexible antenna supplied with the unit or can be connected to an external antenna through RG58 or suitable coax...

Страница 15: ...e supplied through the optional Headphone Microphone Adapter NOTE In all positions of the Internal External switch the PTT switch on the side of the unit is active and can be used to execute a transmi...

Страница 16: ...To set the OBS to the TO radial of the VOR station you are receiving strike the B key At this time the OBS display will blank and the TO FR flag will display the condition that had existed prior to st...

Страница 17: ...the operation and keep his original frequency all that is necessary is to strike the set key when the frequency display is blank 12 Keyboard Lock Switch This switch is used to lock out inadvertent key...

Страница 18: ...of memory locations M0 to M9 2 The Lock Key on the side of the unit above PTT key locks out the 16 Keypad functions and must be in the unlocked condition to use any Keypad function If the Key Lock is...

Страница 19: ...digit entry format should be used for frequency Frequency entries can be cleared if a mistake is made by striking the C Key The frequency entry sequence can be terminated by striking the C Key while...

Страница 20: ...ion key is depressed that the letters MW change to M memory mode and that a numeral corresponding to the location number appears in the smaller display 6 Depress D Key M disappears from the LCD to tak...

Страница 21: ...QUENCY OPERATION If it is required only to receive and transmit over a single channel then follow this procedure 1 Turn the radio ON and set the Volume control to the position 2 Push the M SET and LOC...

Страница 22: ...uence Location M0 cannot be locked out 4 PCS Priority Channel Scanning This feature is restricted to the SCAN scanning mode and in addition only when the radio is in the Memory Mode of Operation The S...

Страница 23: ...R Radial accuracy reliable lock on in the scanning modes was sacrificed Reliable lock on to NAV frequencies is achieved by pressing the memory location key of the desired NAV channel which stops the s...

Страница 24: ...l is present in the display 3 Engage M SET switch down 4 Depress the B Key When the key is depressed the channel is locked out Confirm the presence of the letter L lockout next to the channel number i...

Страница 25: ...from the display signifying the return of this channel to the scanning sequence 5 Release M SET switch 6 Restore the scan direction 14 7 VOR NAV OPERATION The HT870 is capable of giving the user both...

Страница 26: ...Flag is being displayed striking the B Key again will cause the TO Flag to display and by striking the set key the OBS will be set to the TO Radial of the VOR 2 Auto FR This is accomplished as explai...

Страница 27: ...channel has been selected This means that the unit will transmit on Flight Service Frequency 122 10 when the PTT switch is depressed and will receive on the selected NAV frequency Note Since the rece...

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